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TEXAS INSTRUMENTS  LM3409MY/NOPB  Led Driver, Buck (Step Down), PWM Dimming, 6V-42V in, 2MHz switch, 42V/1A out, MSOP-10

Product Overview

The LM3409MY/NOPB is a P-channel MOSFET (PFET) Controller for step-down (buck) current regulators. It offers wide input voltage range, high-side differential current sense with low adjustable threshold voltage and fast output enable/disable function. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currents up to 5A are easily achievable. The device uses constant off-time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analogue and PWM dimming are easy to implement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown and thermal shutdown complete the feature set.
  • Differential and high-side current sense
  • Cycle-by-cycle current limit
  • No control loop compensation required
  • Supports all ceramic-output capacitors and capacitor-less outputs
  • Low-power shutdown and thermal shutdown
  • 2Ω, 1A Peak MOSFET gate drive
  • 10000:1 PWM dimming range
  • 250:1 Analogue dimming range
  • Green product and no Sb/Br

 

Product Information

Device Topology:
Buck (Step Down)
No. of Outputs:
1Outputs
Output Current:
1A
Output Voltage:
42V
Driver Case Style:
MSOP
No. of Pins:
10Pins
Input Voltage Min:
6V
Input Voltage Max:
42V
Switching Frequency:
2MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Tape & Reel
Product Range:
-
Automotive Qualifications Standard:
-
Dimming Control Type:
PWM / Analogue
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (15-Jun-2015)
Topology:
Buck (Step Down)

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Applications

  • LED Lighting;
  • Automotive;
  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 3 - 168 hours
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Substitutes

Associated Products